Each component is essential to the longevity and performance of the engine. One often overlooked but essential part of your Honda Accord’s engine is the harmonic balancer pulley. Properly maintaining or replacing this component ensures smooth power delivery, minimizes vibrations, and keeps your vehicle running efficiently. Understanding the Honda Accord Harmonic Balancer Pulley The Honda Accord harmonic balancer pulley—also known as the crankshaft vibration damper—is designed to absorb and dampen vibrations from the engine’s crankshaft. Each time your engine runs, the crankshaft experiences torsional vibrations due to the forces generated by the pistons and combustion process. Without a quality Accord crankshaft pulley, these vibrations can travel through the engine, leading to premature wear of belts, bearings, and other components.